Triple

Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).

Phrase: MiG-21 | Statement: [Yemeni Air Force, aircraftModelOperated, MiG-21]

Target entity: MiG-21
Context triple: [Yemeni Air Force, aircraftModelOperated, MiG-21]

• A. Mikoyan-Gurevich MiG-21 chosen
  The Mikoyan-Gurevich MiG-21 is a supersonic jet fighter aircraft introduced by the Soviet Union in the late 1950s, widely exported and renowned as one of the most produced combat aircraft in history.
• B. MiG-19
  The MiG-19 is a Soviet second-generation, twin-engine supersonic jet fighter that became one of the first mass-produced supersonic aircraft and served widely during the Cold War.
• C. MiG-25
  The MiG-25 is a Soviet-era high-speed, high-altitude interceptor and reconnaissance aircraft, renowned for its Mach 3 performance and role during the Cold War.
• D. Mikoyan-Gurevich MiG-17
  The Mikoyan-Gurevich MiG-17 is a Soviet jet fighter aircraft introduced in the early 1950s, widely used during the Cold War and notably in the Vietnam War for its agility and effectiveness in air combat.
• E. MiG-29
  The MiG-29 is a Soviet-designed twin-engine multirole fighter aircraft known for its high maneuverability and widespread use by various air forces around the world.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target predicate: aircraftModelOperated
Context triple: [Yemeni Air Force, aircraftModelOperated, MiG-21]

• A. aircraftRoleOperated
  Indicates that an entity operates or has operated in a specified role or function within the context of aircraft operations.
• B. historicalAircraftOperated
  Indicates that an entity previously operated a specific aircraft model during a past period, but no longer does so.
• C. aircraftFlown chosen
  Indicates that an entity (typically a person or organization) operates or pilots a particular aircraft.
• D. operatesAircraftBrand
  Indicates that an entity actively uses or runs aircraft belonging to a specified brand in its operations.
• E. developedAircraft
  Indicates that an entity (such as a person or organization) was responsible for designing, creating, or engineering a particular aircraft.
• F. None of above.